Eichaed vose



' (No Model.)

Patented Jan. 29, 11884. 1.

UNITED STATES PATENT OFFICE.

RICHARD VOSE, on NEW YORK, N. Y.

CAR-SPRING.

SPECIFICATION forming part of Letters Patent No; 292,773, dated January 29, 1884.

C Application filed May 24, 1883. (No model) the 24th day of May, 1883, and filed in the 1 Patent Office, and known as Serial Nos.96,004 and 96,005, I show the different parts of the improvements here claimed in combination, as follows: In Serial No. 96,005 I show the lug projection d cast on and forming part with the cap or covering A, and extending at right angles to the face or plane of said cap down between the two spiral coils. In Serial No. 96,004 Ishow the use of the cup B, as designated in this application, with its movable bottom 12; but in this application I have reversed the position of the bottom of said cup, that is, I have turned the cup upside down.

What I show in this application for Letters Patent is the combination, as differing above, of these two principles of construction in carsprings.

. In the drawings, A is the outer, G the next, and D the inner, coil. These coils or spirals may be of the same length, resting 011 unequal bases, or of unequal lengths on the samebases; also, the action of 'weight acts ina different manner from that set forth in said application, as follows: Weight, pressure, or a load is placed on the spring as constructed.

The cap A, receiving it, presses down into the coil A and D. The projectionsd on said cap -A prevent the coils A and C from coming in contact, as they extend down enough below the face or end of spiral Oto hold it from contact with A. The sides of cup B prevent coil D from contact with coil or spiral O. The pressure on coil D, pressing D onto the bottom 12, brings the cup B to bear onto the coil 0, on which, by its rim h, the cup B rests. It will be thus readily seen that a complete graduating spring is obtained, no spirals coming in contact, and no space lost or employed,which, in'the construction of graduated springs, is a great consideration. The cap A, with its lips d, may be duplicated on the other end; but it is unnecessary to have a double cup, B.

The spirals A may be duplicated, or as many used as desired to make a heavy bearing-spring.

What I claim, and desire to secure by Letters Patent, is

The combination, in a spiral spring composed of three or more spirals, with the cap A, having projections d, of cup 13, having movable bottom I) and rim h, the said spirals of unequal length, or of equal length resting on uneven bases, substantially'as described, and for the purpose specified.

RICHARD VOSE.

,Witnesses:

JAMES SOHENOK, F. T. RANDELL. 

